#866BCD
Closest named color: Medium Purple (#9370DB). oklch(59.8% 0.146 294.2), rgb(134, 107, 205).
Aa
Black text reads best on this color (4.99:1).
About this color
#866BCD is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.146 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.032 away. Black text reads best on it, at 4.99:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #866BCD |
| RGB | rgb(134, 107, 205) |
| HSL | hsl(257, 49%, 61%) |
| OKLCH | oklch(59.8% 0.146 294.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #866BCD | 4.20:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #866BCD | 4.99:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #866BCD text on white | 4.20:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #866BCD text on black | 4.99:1 | AA | Lc -32.9 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD5F1
oklch(88.6% 0.038 293.8)
-
Step 300
300
#C3B8EB
oklch(80.9% 0.072 294.6)
-
Step 400
400
#A592E1
oklch(70.7% 0.115 294.3)
-
Step 500
500 (this color)
#866BCD
oklch(59.8% 0.146 294.2)
-
Step 600
600
#7B5CC5
oklch(55.7% 0.158 294.3)
-
Step 700
700
#684BAB
oklch(49.2% 0.148 294.3)
-
Step 800
800
#543E8A
oklch(42.7% 0.122 294)
-
Step 900
900
#45356E
oklch(37.6% 0.095 294.3)
-
Step 950
950
#282041
oklch(27% 0.06 293.1)
#866BCD with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #497DD1 | 0.086 |
| Deuteranopia (no green cones) | #4D7ACB | 0.081 |
| Tritanopia (no blue cones) | #757E92 | 0.119 |
| Achromatopsia (no color) | #7C7C7C | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866BCD
#866BCD
oklch(59.8% 0.146 294.2)
- #7F8800
#7F8800
oklch(59.9% 0.135 114.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #866BCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.032
- Deep Lilac #966EBD ΔE 0.038
- Deep Lavender #8D5EB7 ΔE 0.043
- Amethyst #9B5FC0 ΔE 0.045
- Medium Slate Blue #7B68EE ΔE 0.055
- Light Indigo #6D5ACF ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.062
- Purpley #8756E4 ΔE 0.062
Use #866BCD in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.